TNFα induces Caspase-3 activity in hematopoietic progenitor cells CD34+, CD33+, and CD41 + of myelodysplastic syndromes

Autor: Anggraini Iriani, Andhika Rachman, Rahayuningsih D. Setiabudy, Siti B. Kresno, Aru W. Sudoyo, Mansyur Arief, Alida R. Harahap, Marsya Kaila Fatina
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: BMC Molecular and Cell Biology, Vol 24, Iss 1, Pp 1-9 (2023)
Druh dokumentu: article
ISSN: 2661-8850
DOI: 10.1186/s12860-023-00495-0
Popis: Abstract Background Cytopenia is the primary feature of Myelodysplastic Syndrome, even in the presence of hypercellular bone marrow. TNFα is recognized as both a proinflammatory, and proapoptotic cytokine with a well established role in promoting apoptosis in MDS. Therefore, TNFα has the potential to be a valuable biomarker for predicting the progression of cytopenia in MDS. This study aims to establish the role of TNFα exposure in triggering apoptosis through caspase-3 activity in CD34+, CD33+, and CD41 + cells in MDS. Methods This study is an in vitro comparative experimental research. Bone marrow mononuclear cells were isolated as the source of hematopoietic progenitor cells. Subsequently, CD34+, CD33+, and CD41 + cells were exposed to rhTNFα, and the caspase-3 activity was measured using flowcytometry. Results In MDS CD33 + and CD41 + caspase-3 activity of rhTNFα exposed cells was significantly higher than without exposed cells. The opposite result was found in CD34 + cells, where the caspase-3 activity without rhTNFα exposed cells was significantly higher than rhTNFα exposed cells. Conclusion rhTNFα exposure led to an elevation in caspase-3 activity in MDS progenitor cells, especially in those that had differentiated into myeloid cell CD33 + and megakaryocyte cell CD41+, as opposed to the early progenitor cells CD34+.
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